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Motorola MVME3100 User Manual

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MVME3100 Installation and Use (V3100A/IH1)
Chapter 1 Hardware Preparation and Installation
6
Geographical Address Switch (S3)
The TSi148 VMEbus Status register provides the VMEbus geographical address of the 
MVME3100. This switch reflects the inverted states of the geographical address signals. 
Applications not using the 5-row backplane can use the geographical address switch to assign 
a geographical address.
Note
1
SW2 configures the operating mode of PCI Bus A during power up. In the default (OFF) 
position, the bus is configured for PCI-X mode. In the ON position, the bus is configured for PCI 
mode.
Table 1-3. Geographical Address Switch Assignments
Position
SW1
SW2
1
SW3
SW4
SW5
SW6
SW7
SW8
Function
Not 
Used
PCI Bus 
A mode
GAP
GA4
GA3
GA2
GA1
GA0
(Factory) 
OFF
X
PCI-X 
mode
1
1
1
1
1
1
Table 1-4. Slot Geographical Address Settings
Slot 
Address
GAP 
GA(4:0)
SW3
SW4
SW5
SW6
SW7
SW8
1
1 11110
OFF
OFF
OFF
OFF
OFF
ON
2
1 11101
OFF
OFF
OFF
OFF
ON
OFF
3
0 11100
ON
OFF
OFF
OFF
ON
ON
4
1 11011
OFF
OFF
OFF
ON
OFF
OFF
5
0 11010
ON
OFF
OFF
ON
OFF
ON
6
0  11001
ON
OFF
OFF
ON
ON
OFF
7
1 11000
OFF
OFF
OFF
ON
ON
ON
8
1 10111
OFF
OFF
ON
OFF
OFF
OFF
9
0 10110
ON
OFF
ON
OFF
OFF
ON
4389 0106
16
Not used
PCI mode
GAP#=0
GA4#=0
GA3#=0
GA2#=0
GA1#=0
GA0#=0
1
2
3
4
5
6
7
8
1
16
Not used
PCI-X mode
GAP#=1
GA4#=1
GA3#=1
GA2#=1
GA1#=1
GA0#=1
1
2
3
4
5
6
7
8
1
ON
ON